Locomotive-drafter.



1. H. MAc LAUCHLAN.

LOCOMOTIVE DRAFTER.

APPLICATION FILED APR-1,1915.

Patented Nov. 16, 1915.

Inventor: 2134mm W @W I L; Atty JAMES H. MACLAUGHLAN, OF NEW YORK, N. Y.

LOCOMOT IVE-DRAETER.

Specification of Letters Patent.

Patented Nov. 16, 19 15.

" Application filed April 1', 1915. Serial No. 18,488.

To all whom itmayconcemq Be it known that I, JAMES H. MAoLA oH- LAN, acitizen of the United States of America, residing at New York city, inthe county, a and State of New York, have invented .cer-

tain new and useful Improvements in Locomotive-'Drafters, of which thefollowing is a specification.

My invention relates to an improved locomotive drafter.

Devices of this kind usually form part of a roundhouse equipment, andserve to induce draft in a locomotive furnace to restore the locomotiveto service condition after .its fires have been'banked, or drawn, forvarious reasons.

' Locomotive drafters include, as essential elements, a fan or eXhausterand an uptake pipe for connecting the stack of a. locomotive with thefan. Tosecure the greatest efficiency in operation of the drafter it'isnecessary that the action of-thefan on the locomotive'furnace shall beas vigorous as possible, and the primary purpose of in- 'vention is toprovide a construction wherein the maximum efficiency ofthe fan isobtainable. 1 accomplish 'thisobject by so 'arranging the fan that itmay revolve in a horizontal plane, and by connecting the locomotivestack to the fan by means of a straight uptake pipe, free of all bendsor elbows likely to detract from the effective suction action of thefan. The uptake pipe is; preferably of telescopic construction, so

as to be capable of increase or decrease in 40 and away from the outletof the engine stack. It has heretofore been usual to provldeseparatecontrolling means forlncreasmg or decreasingthe length of the uptakepipe, and for swmgmgthe samefrom side to side: This arrange-mentiscumbersome,

and time consuming inoperation, and an other object of my invention isto provide means, operable from a single controlling ptiihti forincreasing or decreasing the "ieagaroraienpeke pipe as,well as for meing it frdiiiside to side. Such controlling means feiably include aflexible cord or chain house floor within convenient reach of anoperator.

a riding to apoint near the round-,

The detail construction and operation of the invention will be clearlyunderstood from the following description thereof, in connection withthe accompanying drawin wherein Figure 1 is an end elevational view ofthe improved locomotive drafter, showing the uptake pipe in positionover the locomotive stack outlet, the dotted line position illustratingthe oscillating or swinging capacity of. this pipe; Fig. 2 is a sideelevational view thereof; and Fig. 8 is a detail view, partly insection, of a part of the means for operating the uptake pipe.

Referring to the drawing, 10 denotes the roof of around house, uponwhich is supported a head house 11, inclosing the suction mechanism forthe locomotive drafter.

Resting upon the round house roof 10, ar the supporting arms 12 for afan or exhauster 13. This fan may be of any approved type, but it isessential for the purpose of my invention that it be arranged to revolvein a horizontal, or substantially horizontal plane, as indicated in thedrawing. The fan is preferably driven by an electric motor, designatedas a whole by the numeral 14:. Theoperationof the motor is switch controlled, as usual.

The casing of the fan 13 is suitably con- .nected with an olfta'ke pipe15, which projects beyond thehead house roof, and serves to conduct theexhaust productsof the fan 13 to atmosphere at a point higher than thetop of the roundhouse.

. Dependingfrom thecasing of the fan 18 is a nipple or relatively shortpipe extension IS, in which is pivotally supported the upper end of theuptake pipe,'consisting of the telescoping sections 17 and 18, the sec-"tion 17 preferably, although not necessarily, telescoping within thesection 18.

The edge of the nipple 16 is provided with, or formed as, a packed orgasketed flange 19 to prevent escape of steam or smoke between theuptake pipe and the nipple 16. u u

The upper end of the pipe 17-18 is preferably. enlarged andsubstantially cylind-rical as indicated at 17*, and is pivotallysupported by pins 20 carried in the hangers 21, secured to the casing offan 13. Two pins 20and two hangers 21 are used, although but one of eachappears in the drawing.

* The lower end of the pipe l7-*18 is "pr o vided withan enlargedcylindrical hood 22,

designed to rest upon the outlet end of the stack23 of a locomotive 24.Owing to the cylindrical inner configuration of the hood,"

a tight connection between the same and the stack 23 is obtained,even-though the pipe 1718 be inclined with respect to thestack,

-ties;-Embracingthe pipe section 17 below its enlarged head 17 is acollar projecting outwardly from the uptake pipe and se cured in one legof a substantially triangular socket 26. Secured in the other legofthesocket is one end of an inclined rod 27, the

opposite end of which is securedto thepipe' section 17 at about itsmedian point. Projecting upwardly from, and rigidly attached to, theapex of the socket 26 is a link 28 pivotally connected to an arm orlever 29 (Fig, 3) formed at one end of a sleeve or hollow shaft 30 whichextends along the round house roof in a direction at right angles to theaxis of pipe l7*l8 when the latter is vertically pendent. The end of thesleeve 30 opposite that which carries the lever 29 is provided'with aworm wheel 31 which meshes with a worm 32 on a short shaft 33 extendingat right anglesto :shaft 30. The shaft 30 and the shaft 33 are supportedin a bracket 34 fixed to the round house roof. 'At one end, the shaft 33carries a grooved pulley 35 over which the endless operating cord 36isrove. This operatingfcordextends down to near the round house floorwithin easy reach of a person standing on the floor.

Lengthwise adjustment of the uptakepipe 17 18 is securedby means of thefollowing instrumentalities:Attached to the pipe section 18, nearitsupper edge, is one end of a cable or wire 36 which passes over asheave 37 on the side of pipe section 17, over a second sheave 38 in thesocket 26, and has its opposite end secured to the periphery of agroovedpulley'39 (Fig.3); interposed between the sheave 38 and the pulley39'is. a

guide41 carried by. and projectinglout from the motor 14,'and serving tosupport one end of shaft 40 and to guide the cord 36. The

pu1ley'39 iscarried near one endof a shaftv 40 which is coaxial with,and surrounded by the sleeve 30. The end ofthe shaft 40 opposite thatcarrying the pulley 39 projects beyond the sleeve 30 and has securedthereto a worm wheel 42 meshing with a worm 43, formed on .a shaft 44which extends at right angles to the shaft 40. The shaft 44 is suitablysupported on the round house roof, and carries at one end thereof apulley 45 over whleh an endless operating cord 46passes. The cord 46extends down toward the houndhouse fioor about the same distance as thecord 36.

The operation of the invention will be understood from .the followingdescription thereof. When an engine 24is to be subjected to the actionof the drafter, the cord 7 46 is pulled so that shaft 40 will berevolved in a direction to raise the section 18 of the uptake pipe adistance above the top of the stack'23 0f the engine 24. Then one of thestrands of cord 36. is pulled so as to rotate sleeve 30in the properdirection to swing the uptake pipe into a position where the hood 22will be over the outlet end of stack 23. Thereafter the properstrand ofcord 46 is operated to lower the hood onto the stack 23'and theexhauster is put into operation. After completion of the exhausting-eaction theseetion 18 is raised to clear the stack 23 and the locomotive24 movesaway. The pi e 1718 may be permitted to remain in its astposition until again required for.

use.

7 It will be noted that the lengthwise and side to side adjustment ofthe uptake pipe is controlled from one point by means of thecords 36 and46, so that but one operator is required for the device. Furthermore,owing to the fact that the pipe l718 is straight from ,end to end, andthe fan revoluble in a horizontal plane, the full efficiency of the fanis availed-of, and the plac and desire to secure end of said uptakepipe. v

2. A locomotive draft'er, comprising a straight uptake pipe having oneend adapt ed for connection with a locomotive stack, and exhaust meansrevoluble in a substantially horizontal plane and communicating with theother end of said uptakepipe.

A locomotive drafter, comprising a telescopic uptake pipe having one endadapted for connection with a locomotive stack, and exhaust meansrevoluble in a substantially horizontal plane and communicating with theother end of said uptake pipe.

4. A locomotive drafter, comprising a telescopic uptake pipe having oneend adapted for connection with a locomotive stack, exhaust meansrevoluble ina substantiallyhorizontal plane and communicatingwith',',the,, other end of'said'uptak'e pipe and n iea i for varying thelength of saidflpipe g;

.5 A locomotive drafter, id-,1 escopic uptake pipe having one fen d.adapted for connection with a locomotive stack, exhaust means revolublein a substantially horion izontal plane and communicating with the otherend of said uptake pipe, and means for swinging said pipe from side toside.

6. A locomotive drafter, comprising a telescopio uptake pipe, having oneend adapted for connection with a locomotive stack, exhaust meansrevoluble in a substantially horizontal plane and communicating with theother end of said uptake pipe, means for: varying the length of saidpipe, and means for swinging said pipe from side to side.

7 A locomotive drafter, comprising a telescopic uptake pipe, having oneend adapted for connection with a locomotive stack, ex-

haust means revoluble in a substantially 5 horizontal plane andcommunicating with the other end of said uptake pipe, means for varyingthe length of said pipe, and means for swinging said pipe from side toside, both said last named means including flexible operating membersterminating at substantially the same point.

In testimony whereof I have affixed my signature in presence of twowitnesses.

JAMES H. MAOLAUOHLAN. Witnesses:

CLARIOE FRANOK, OTTO MUNK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

